\[\boxed{\text{793.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
Пояснение.
Решение.
\[\boxed{\text{793\ (793).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[\textbf{а)}\ x^{2} - 10x + 24 =\]
\[= x^{2} - 6x - 4x + 24 =\]
\[= x(x - 6) - 4 \cdot (x - 6) =\]
\[= (x - 6)(x - 4)\]
\[\textbf{б)}\ x^{2} - 13x + 40 =\]
\[= x^{2} - 8x - 5x + 40 =\]
\[= x(x - 8) - 5 \cdot (x - 8) =\]
\[= (x - 8)(x - 5)\]
\[\textbf{в)}\ x^{2} + 8x + 7 =\]
\[= x^{2} + 7x + x + 7 =\]
\[= x(x + 7) + (x + 7) =\]
\[= (x + 7)(x + 1)\]
\[\textbf{г)}\ x^{2} + 15x + 54 =\]
\[= x^{2} + 9x + 6x + 54 =\]
\[= x(x + 9) + 6 \cdot (x + 9) =\]
\[= (x + 9)(x + 6)\]
\[\textbf{д)}\ x^{2} + x - 12 =\]
\[= x^{2} + 4x - 3x - 12 =\]
\[= x(x - 3) + 4 \cdot (x - 3) =\]
\[= (x - 3)(x + 4)\]
\[\textbf{е)}\ x^{2} - 2x - 35 =\]
\[= x^{2} - 7x + 5x - 35 =\]
\[= x(x - 7) + 5 \cdot (x - 7) =\]
\[= (x - 7)(x + 5)\ \]